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Ondax光学元件

Ondax陷波滤光片不同于常见的薄膜滤光片,而是通过全息曝光技术制成的布拉格体光栅型滤光片,该滤光片对激光谱线的衰减能高达99.99%(OD4),且光谱的过渡带宽小于10cm-1。因此,Ondax低波数拉曼系统可以对瑞利散射达到OD8的抑制,同时收集低于10cm-1的正/反斯托克斯的信号。

 

 

Ondax陷波滤光片不同于常见的薄膜滤光片,而是通过全息曝光技术制成的布拉格体光栅型滤光片,该滤光片对激光谱线的衰减能高达99.99%(OD4),且光谱的过渡带宽小于10cm-1。因此,Ondax低波数拉曼系统可以对瑞利散射达到OD8的抑制,同时收集低于10cm-1的正/反斯托克斯的信号。

该系统可于常用的光谱仪连用,目前可得到的拉曼波长主要有:488nm,514nm,532nm,633nm,785nm,808nm,976nm, 和1064nm。也可以根据客户要求定制中心波长。

Filter Components
  Features Available Wavelengths (nm) Diameter (mm) Clear Aperture (mm)
Ondax光学元件
 

SureBlockTM
Notch Filters

 

  • Optical Density > 4
  • Transition width < 10 cm-1
  • Angle tunable center wavelength
  • Environmentally stable operation
  • No degradation over time
  • Requires compatible wavelength stabilized and collimated, ASE-free laser for optimal performance

488, 514, 532, 633, 785, 808, 976, 1064

25.4

 9

Ondax光学元件

NoiseBlockTM 90/10
Beamsplitter Filters

  • Diffraction Efficiency > 90%
  • Bandwidth < 10 cm-1
  • Operating angle 8-12 degrees
  • Angle tunable center wavelength
  • Environmentally stable operation
  • No degradation over time

488, 514, 532, 633, 785, 808, 976, 1064

25.4

9

Ondax光学元件

NoiseBlock
ASE Filters

  • Diffraction Efficiency > 90% (~70% for 405 nm)
  • Bandwidth < 10 cm-1
  • Operating angle 8-12 degrees
  • Angle tunable center wavelength
  • Environmentally stable operation
  • No degradation over time

405, 488, 514, 532, 633, 785, 808, 976, 1064

12.7

4.5

 

 

Filter Assemblies
  Features Available Wavelengths (nm) Dimensions (mm)
Ondax光学元件

SureBlock XLF
filter module

  • Includes 2 pre-aligned SureBlock notch filters
  • Free space or fiber optic input and output options
  • Bandwidth < 10 cm-1
  • Spatial filtering reduces collected Rayleigh scatter
  • Angle tunable center wavelength
  • Environmentally stable operation
  • No degradation over time

488, 514, 532, 633, 785, 808, 976, 1064

75 x 182 x 72

Ondax光学元件

CleanLineTM-FS
ASE clean-up

 

  • Compact, pre-aligned package
  • Integrated alignment targets
  • Built-in wavelength fine tuning adjustment
  • ASE suppression – better than –80 dB below laser line
  • 0.1 nm bandwidth
  • Temperature stability 10 pm/°C
  • High transmission throughput

405, 532, 633, 785

30 x 73 x 37

Ondax光学元件

CleanLine-LM
laser module

  • Compact, pre-aligned package incorporates laser, isolator and CleanLine-FS platform
  • Free space, collimated output beam 
  • Ideal for use with SureBlock XLF or notch filters 

 

405, 633, 785

219 x 77 x 60